I think the guy who figured it out, Pamcopete, has guite a few years on the set up.
The combo reg/rec from most suppliers, Like Mike's, doesn't come with a warranty.
If it gets wired wrong or quits then your out the $100 or so bucks you spent. The Chrysler reg has a 1 year free replacement warranty. No questions asked, take it back, get a new one.
The Radio Shack rectifier, if you use connectors to hook the wires to the rectifiers then if it quits you can go to ost any Radio Shack, get a new parts and just replace it.
I have used the same rectifier to build and repair many electronic devices over 30 + years and never had a failure.
The regulator was used for 15 years or so. I have been a shade tree mechanic for 40 + years and don't recall to many complaints about Chyrsler regulators. Delco much more often and most people say they are the better system.
So I think you can do the mod and not worry to much, I have a couple years on mine and no trouble except what I caused, the warranty works.
Leo